BCL6 and diffuse large B-cell lymphoma: For the 118 patients that were diagnosed with DLBCL, the histologic fragments were big enough to perform not only the standard pathological diagnostic tests, but also the additional cytogenetic analyses (MYC, BCL2 and BCL6 rearrangements) that allow to properly identify high risk patients (so-called double-hit DLBLC patients when MYC rearrangement is present together with either BCL2 and BCL6).